Improvement in steps in tram-boxes for mill-spindles



W. G. NOBMENT. Mill Spindle Step.

No; 111,768. Patented Feb, 14, 187 1.

;/ g Ma lil fl lll ailituwmz I gamma I UNITED STATES PATENT OFFICE.

WILLIAM GILES NORMENT, OF DYERSBURG, TENNESSEE} IMPROVEMENT IN STEPS INTRAM-BOXES FOR MILL-SPINDLES.

Specification forming part of Letters Patent No. 111,768, dated February14, 1871.

To all whom it may concern:

Be it known that I, WILLIAM GILEs Non- MENT, of Dyersburg, in the countyof Dyer and State of Tennessee, have invented a new and usefulImprovement in Step and Tram- Box; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to make and use the same, referencebeing had to the accompanying drawing, forming part of thisspecification.

My invention relates to mill-spindles and upright shafting; and consistsin a combination of parts whose purpose is to admit both of tramming andof the adjustment of the spindle independently of the tram-box.

I will first describe my invention in connection with all that isnecessary for a full understanding thereof, and then clearly point itout in the claim.

In the accompanying drawing, Figure 1 represents a vertical section ofmy improvement, taken on the line 00 as of Fig. 2. Fig. 2 is a top orplan view.

Similar letters of reference indicate corresponding parts.

A is the bridge-tree, which is secured to the timber or foundation inthe usual manner. B is a tight box, which is fitted into the recess inthe bridge-tree, upon the bottom of which is the steel step-plate O. Dis the step-point of the spindle or upright shaft. E represents thesectional box, each section with a concave side to fit the point, asseen in the drawing. F represents adj Listing-screws, which work throughthe sides of the box B as through nuts, the ends of which engage withthe backs of the sections E, as seen.

G are jam-nuts on these set-screws to hold the screws in place when thespindle or shaft has been properly adjusted.

By reason of the setting or movement of the foundation, the shrinkage oftimber, and other causes, it is often necessary to tram or adjustlaterally the step ends of mill-spindles and upright shafts, so as tokeep them in atrue perpendicular position, or to make the gearing meshproperly. This is ordinarily done by moving the bridge-tree, but this isdisturbing the ground-work, and is objectionable 011 many accounts.

By my improvement the step end of the spindle or shaft is readily movedor adjusted laterally by means of the adjusting set-screws F. Thebox-sections E, being confined by no guides, are en tireiy free to moveeither toward or from the center. The box B having a perfectly tightbottom will retain oil or other lubricating material for any desiredlength of time, so that the point is constantly selflubricated.

The advantages of my arrangement will be readily understood by millwrights and all who 4 are acquainted with this class of machinery.

Having thus described my invention, I claim as new and desire to secureby Letters Patent The bridge-tree A, tight box B, and inwardly-concavesections E, combined, as described, with screws F and jam-nuts G, toadmit of both tramming and adjusting the spindle itself, as described.

WM. GILES NORMENT.

Witnesses 7 J N0. B. YORK, F. E. DAVIS.

